Valve-controlling mechanism for internal-combustion engines.



H. M. NEER.

VALVE y(JONTROLLING MEGHLNISM FOB INTERNAL OOMBUSTION ENGINES.

union-mr FILED rma. 13, 190s.

inventos 'IMJ/Z'y/ler HARRY M.. NBER, OF COLUMBUS,` OHIO.

vALi/'E-GONTROLLING MECHANISM FORINTRNALTCOKMBUSTION ENGINES. v

no. l901,365.

To all whom 'itfman/ crmcerfn.:I

Beitknown that l', HARRY M. New, vciti- `zen of theUnited States, residing at Colmo-- luis, in the `eounty of Franklin .and State of (')liio,'have invented certain new and useful improvements ,in vValve#(.ontrollingI Mechanism for .ln-temul-Combustion Engines,v of which the following is u specification.

My invention relates to the improvement o`l` valve controlling mechanism for internal o1nl.ustion engines and the objects of vmy invention are to }'irovide'an engine of this class with improved means for 'positively .openingfainl closingy the. intake and exhaust valves atwliuoper intervals, thereby obviating` the loss of ccnnpression which sometimes occurs in high speed engines through the failure of -one of said vulve to'rclose at vthe proper moment; to proved valve control]ingr aplliaratus as to oh- `,\'iate the necessity of employing silnings for the opening or closing of said valves and to produce other improvements the details oi",A

v vwhich will be more fully pointedout hereinafter.

drawing, in which: Y

Figure 1y is 'a vertical section through the crank case' and yan exhaust and intake valve ofugasolene engine, Fig. 2 risa side elevation of u bevel gear Wheel and its attached guide plate or shield which'l emploigjy in 'the manner hereinafter deseriheil, Fig. il is a plnn view oil said gear wheel, and, Fig. L is a transverse section 'of the guide or shield 'plate which l employ in connection with said beveled gear wheel.

Similar numerals refer to 'similar parts throughout the several views.

1 represents the crank case of a gus or gasolene engine, 2 the crank shaft mounted therein, 3 the lly Wheel which is mounted on said shaft, 4 and 5 the'cranks from which are operated the connecting rods in the usual. manner, a port-ion indicated at 6.

7 represents a fan which is mounted on a reduced extension 2L of the main shaft and which is inclosed in a fan casing 8, the latter having an airk conducting pipe 9 leading therefrom, through Which air from the fan is forced to the engine cylinders. These c linders of which there are two shown'in t e drawing, are indicated at 10 and 11, said cylinders being provided in the usual manvSpeeifmetion of Letters '.Pzttent.V

Application led February 13, 1908. Serial No. %1,631,

so construct my im-A 'the gear wheel.

l These objects I accconu'ilish in 'the lmanner illustrated 1n the accompanyingr of one of said rods being' Patentedoct. 20, 1908.

`V1ivith pistons operated by the connecting 11d pistons not being hereln shown. out-he shaft 2, 1s carrieda gear wheel 12 Whioh'meshes with gear Wheel '13 carried on one end ot' a vhorizontal shaft 14 60 ygournzrled in' the, crank case. The shaft 14 `carries for each pair of exhaust und inlet employed a bevel pinion 15, each vof i inions gearing with a horizontal bev.

l gear wheel 1G which 'is rotatably mount- 65 ed upon u short vertical pin or shaft 17 which ri?7 from. a frame arm 18 in.A

also journaled. -In the'- wliich the shaft i4 is construction of the beveled gear Wheel 16, I formthe otherwise flat upper side of the'same 70 with a Acam projection 'i9 which is in the nature of a one-quarter segment of'a ring or hand rising from the upper surface of `the gear wheel adjacent. to its periphery. The ends of this cum segment 19 are in- 75 elined, as shown, to' meetthe upper vfaeeof It will be noted that the pinion is of half` the size of said gear wheel 1G, y

llflouured on an upward extension ,17Hl ofv 30 the shall 1T is' 'the central portion ot a disk or plate 20, the latter having a depressed marginaal portion whichis sl'iown at20a and which depressed 'portion occupies threer fourths of the cireuinl'erence of the disk-top. 35 Through the medium ot' pins 21 which project up 'n.i'dly from each of the gear Wheels '25, the disk @Dis held against independent rotary movementand in such position that the undepressed fourth of the marginal portion of the disk is located immmliately aboveA the cam projection 19 on said gear wheel, thus providing' an equal distance between the marginal portion of the disk and the top of the gear Wheel und between said disk and the upper surface of the cam projection 19. The upper ends of the pins 21 pass loosely through openings in the disk and the upper `side of vthe disk has a cushion hearing against a short coiled spring 17 b which bearsbetween 100 lsaid disk and the enlarged head of the shaft extension 17a.

22 and 23 represent respectively an exhaust and intake `valve casing, these casings being, as shown, in connection With the head of one of the engine cylinders and having downwardly extending valve rod guide proj ections` 24.

25' represents an exhaust valve andy 26 an intake valve, these valves vbeing; located in theirrespective c 'a'sings and adapted kkto seat z ing to the failure of the. valves to or li'n the lower portion thereof. From the exhaust valve25 leads downward the usual valve rod 27' which passin in'to the crank casing has pivoted in its lowerl end a small roller 28. A similar roller 29 is ivotally Vconnected with'the lower end of t e valve rod 30 of the intake valve 26. l

the rollers 28 and 29 are adaptedto bearand roll upon. the upper surfaces of the gear wheeland the cam proect-ion 19 thereo x It is obvious that w enone of :the Vvalve rod rollers is upon the'cam .projection 19, the valve of the rod with which said raised roller is connected, will be held in the open position and that that `valvethe of which as its roller bearing upon the surface of Lthe beveled gear wheel, will be'closed. In order to insure this contact of the rollers w1 h thefsurface ofthe.` gear' wheel and thereby insure the closingof the valve, I provide the lower end of each of the valve-rods 27 and 30 With a laterally rojectin vstud or pin 31 which as shown in ig. 1 of t e drawmg, enga es` the underside of the marginal portion o the -disk 20.

In operation itis obvious that-the rotation of the crankshaft will impart through the gear wheels 12 and 1 3, rotary motion to the shaft 14`which throughf'its pinions 15 will impart rotary motionto -the gear wheels 16. In the movement of' each of these gearl wheelsit will be understood thatat regular intervals. the rollers 2 8 and 29 will succes-i sively ride upon the cam rojectionv 19 vof the gear wheel and upon tdeupper surface of. said; wheel, thereby producing at certain predetermined times a .positive opening and closing operation of the exhaust `'and inlet mechanical devices.

of this character in maintaining power ow- As indicated in Fig. 1 'of the drawing,v

valves withoutthe aid. 'of springs or other olpen at the proper time', but it will be noted 4t at the means herein described are such as to insure positive closing and opening action of the valves, these means being so constructed and arranged as to not only vo en'the intake valve to admitv the charge o as and air, but to` close said valve and hol it closed while the' charge'is being compressedz Likewise the. means employed are so arranged as to hold the exhaust valve closed during compression and open said exhaust valve ony the exhaust stroke of the piston and'close. the-same before the intake valve opens.

It will be observedV that the mechanism by which these objects are accomplished is simple of'construc'tion and of such msure-,positive operation.

What I claim, is:

In an internal Vcombustion engine, the combination with a crank case, a crank shaft therein, connecting rod operating cranks on said crank-shaft, plston'containin'g cylinders, exhaust and inletppvalve casings, valves in said casin'gs and valve rods extending therefrom into said crank case, anda roller pivoted in each of said lvalve rods, of a shaft within the crank case `rotated b the crank shaft, a pinion carried on said s aft, a gear wheel meshing with said pinion, a cam segment on the'upper side of said .gear wheel, and a plate supported above said gear wheel nature as to n ,and having a depressed ortion, said valve rod rollers adapted to ear on said gear wheel and its cam projection and thev lower ends of said rods adapted to engage. the

underside of said plate. l

rIn testimon whereof I afiixgmy signature in presence o two witnesses'.V

HARRY M. NEER.

Witnesses:

' A. L. PHELrs,

L. CARL SfroUcHToN. 

